I agree about the cigarette thing -- long ago my issue was never quitting; I could do that easily (and I don't mean for a few hours), but it was so easy that it seemed reasonable to smoke the "3 cigarettes per day that I actually enjoyed".
But one was always too many. In a few days, I would be back smoking 1-2 packs a day.
So, my solution was to one day say, "I will never ever smoke another cigarette as long as I live." (And to know internally that I meant it.)
35 years ago.
I dreamed about smoking off and one for 20 years -- not in a way like "I dreamed of getting rich" but rather just had dreams, usually unpleasant, where I would find myself smoking within the dream and feel disgusted or disappointed.
It's never been an issue again.
Sleep study AHI: 49 RDI: 60 -- APAP 10-11 w/AHI: 1.5 avg for 7-days (up due likely to hip replacement recovery)
"We can all breathe together or we will all suffocate alone."
I know I am a mouth breather and have accepted it. My doctor and I have talked about it several times. Between sinus issues, some can be corrected by surgery (deviated septum) and others cannot, I use a FFM and keep my humidity around 1 or 2 depending on how I feel. Part of this comes from 20 years of flying jets for the AF. Their training is you breath through your mouth and not the nose as aviator's oxygen is dry - NO humidity in it all. The reason for no humidity is so the lines won't freeze. And the oxygen comes from a liquid oxygen converter. My current FFM fits the same way one of my old oxygen masks did (still have my helmet and mask). My AHI averages in the mid to low 3s for the 7 and 30 day periods. I do get some spiking but that is when I am trying to get back to sleep after my wife wakes me up with her tossing and turning. We both use Biotene (or its equivalent) which seems to help a great deal.
This is from Wikipedia, although I realize their information is not always 100% accurate:
Mouth breathing has been classified according to etiology into 3 groups: obstructive, habitual and anatomic.
The nasal airway may be compromised partially (where there is increased resistance to the flow of air due to narrowing of the lumen at some point in the upper respiratory tract) or completely obstructed. Such individuals may find it difficult or impossible to breathe through their nose alone. In about 85% of cases, mouth breathing is an adaptation to nasal obstruction. Specific causes of nasal obstruction which have been linked to mouth breathing include antrochoanal polyps.
"Pregnancy rhinitis" may lead to nasal obstruction and mouth breathing. This tends occur in the third trimester of pregnancy.
Some individuals breath through their mouth through force of habit, perhaps due to a previous cause of nasal obstruction that is now corrected.
In other cases, the upper lip may be short, and the lips do not meet at rest ("lip incompetence").
To err is human, but to really mess things up, you need a computer.